4 VB230/400-6/25/30L (LP)
3. General description
The electronic braking devices of the VersiBrake-L-type are available both as a housing version
and as a circuit-board version (LP). They enable non-wearing braking of three-phase
asynchronous motors and mono-phase motors. The braking devices are used for drives that, due
to safety and functional reasons, have to be reliably slowed down. Braking is initiated by
measuring the motor voltage. It is not necessary to connect the motor contactor contact, but this
is possible if double detection (redundant system) is required. An integrated standstill detection
function switches the braking current off after the motor has come to a standstill.
Various fault conditions are indicated via LEDs and, in the case of the circuit-board version, additi-
onally via a fault signalling contact.
Special features
• controlled by microcontroller
• wear-resistant and maintenance-free
• for three-phase asynchronous motors
• for mono-phase motors
• retrofitting into existing plants possible
• no normally closed contact on motor contactor required
• integrated braking contactor
• printed circuit-board version with fault signalling contact
• automatic remanence time optimization
• integrated motor standstill detection
• integrated overload monitoring
• braking current control
• meets trade assoc. requirements for PL = b,
acc. to DIN EN ISO 13849-1
4. Usage to the intended purpose
The devices of the VersiBrake…-L (LP)-series are electrical equipment that is used in industrial
electrical power installations. They are designed for application in machines, in order to slow
down rotating masses on drives with three-phase a.c. motors.
Typical applications
• sawing machines
• centrifuges
• wood working machines
• conveying systems
• textile machines
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